Clock Watchdog Timeout BSOD: i5 2500K Overclocked, GTX 960 - Possible Overclocking Issue?

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#1 17893901 08 Apr 2019 18:21

Anonymous Anonymous

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Post #1
17893901 08 Apr 2019 18:21

Hello, I've been having a problem with the CLOCK WATCHDOG TIMEOUT bluescreen pop-up for some time now.
I have an i5 2500K overclocked to 4.4GHz
8GB of ram
GTX 960

Perhaps it is caused by overclocking the processor, I would like to ask for help how to solve this problem and whether it can be due to overclocking ~~prock~~ CPU because I overclocked about 3 weeks ago, and the problem has only been present for a week. For the first two weeks, almost everything worked fine.
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#2 17893916 08 Apr 2019 18:29

Pedros050 Pedros050

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Post #2
17893916 08 Apr 2019 18:29

Hello. The CLOCK_WATCHDOG_TIMEOUT error means that your CPU is having trouble cooperating with its cores and threads. Threads are tasks performed by cores, and some cores can download multiple threads at the same time. The problem is that a thread is waiting for a proper response from another thread - or a core is waiting for a response from another core - and those responses are not coming. That's why you get this BSoD error. Updating the BIOS should help.
#3 17893918 08 Apr 2019 18:32

Anonymous Anonymous

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Post #3
17893918 08 Apr 2019 18:32

And here I put my settings in the bios after overclocking if everything is good, I suggested the settings on the same ~~proc~~ processor somewhere on YouTube. I have an Asrock p67 pro board and I heard that updating the bios to 3.30 often ends badly.

EDIT
I tried to update the bios, unfortunately, when I enter instant flash, the message "no image file detected" pops up. How to upload bios?

Added after 29 [minutes]:

Ok, I managed to update the bios to version 3.30. Now the question is should I give the same OC settings or some other? I was up to 4.4 ~~GHZ~~ GHz and such settings as in the pictures.

merged. RADU23

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#4 17894024 08 Apr 2019 19:17

Pedros050 Pedros050

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Post #4
17894024 08 Apr 2019 19:17

Set the CPU to AUTO in the BIOS. And check if the BSoD persists?
#5 17894031 08 Apr 2019 19:21

Anonymous Anonymous

Level 1

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Post #5
17894031 08 Apr 2019 19:21

The BSOD occurred intermittently not every day so should I set it to auto and wait a few days? I can't give the first settings like what I had and see if it occurs or not?
#6 17894080 08 Apr 2019 19:44

Pedros050 Pedros050

Level 43

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Post #6
17894080 08 Apr 2019 19:44

Some misconfigured drivers can cause slow performance, and bad drivers mostly cause BSoDs like CLOCK_WATCHDOG_TIMEOUT.
#7 17894103 08 Apr 2019 20:32

Anonymous Anonymous

Level 1

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Post #7
17894103 08 Apr 2019 20:32

Ok, then I'll wait and let you know if any BSOD appears, and for now thank you very much for your help :)

Added after 37 [minutes]:

One more thing, when I set the oc of the processor, I had an offset mode of -0.005V because I read somewhere that it is good, but for example in this video there is an offset of +0.015V that I should apply to my processor and motherboard ??
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#8 17894495 08 Apr 2019 21:49

aachi aachi

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Post #8
17894495 08 Apr 2019 21:49

Often, in addition to errors in the drivers, also the OC can contribute to this error. A few weeks ago someone also had the error 0x101 and it turned out that the cause was the OC of the processor (by increasing the FSB frequency).
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#9 17894919 09 Apr 2019 08:07

Anonymous Anonymous

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Post #9
17894919 09 Apr 2019 08:07

And is it better to use offset mode or fixed mode? Because I had offset mode -0.005V all the time. Maybe if I switched to fixed mode it would be better?
#10 20457158 25 Feb 2023 06:44

qcoopoznan qcoopoznan

Level 2

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Post #10
20457158 25 Feb 2023 06:44

Pedros050 wrote:
Updating the BIOS should help.

Between the version of the BIOS that I have and the current one, there are a few intermediate fixes. Is it better to install them sequentially or only the last one?
#11 20457224 25 Feb 2023 09:00

artaa artaa

Level 43

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Post #11
20457224 25 Feb 2023 09:00

If the manufacturer does not prescribe any fancy order, the latest one is enough.
#12 20457226 25 Feb 2023 09:01

Kolobos Kolobos

IT specialist

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Post #12
20457226 25 Feb 2023 09:01

@qcoopoznan it all depends on what the manufacturer has given on his website, sometimes you can get the latest one right away, sometimes some intermediate ones + other updates are required.
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Topic summary

✨ The discussion revolves around a CLOCK_WATCHDOG_TIMEOUT BSOD issue experienced by a user with an overclocked Intel i5 2500K CPU at 4.4GHz, 8GB RAM, and a GTX 960 GPU. The user suspects the overclocking may be the cause of the problem, which started a week after the overclocking was applied. Responses suggest that the error indicates a communication issue between CPU cores and threads, and recommend updating the BIOS as a potential solution. Users also discuss adjusting BIOS settings, including setting the CPU to AUTO and experimenting with voltage offsets. The importance of driver configuration is highlighted, as misconfigured drivers can also lead to BSOD errors. The conversation includes inquiries about the best practices for BIOS updates and voltage settings for overclocking.
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FAQ

TL;DR: CLOCK_WATCHDOG_TIMEOUT (0x101) strikes when "an expected clock interrupt was not received." For overclocked i5‑2500K/ASRock P67 rigs, fix by clearing OCs, updating BIOS, and checking drivers. [Bug Check 0x101 CLOCK_WATCHDOG_TIMEOUT]

Why it matters: It gives DIY builders a safe path to diagnose intermittent 0x101 BSODs without risky changes.

Quick Facts

Bug check 0x00000101 = CLOCK_WATCHDOG_TIMEOUT; Windows missed a clock interrupt on a secondary processor. [Bug Check 0x101 CLOCK_WATCHDOG_TIMEOUT]
To isolate OC faults fast, set CPU to AUTO in BIOS and test. [Elektroda, Pedros050, post #17894024]
Bad or misconfigured drivers can trigger this BSOD; update chipset and GPU drivers. [Elektroda, Pedros050, post #17894080]
Overclocking instability, including raised FSB/BCLK, has triggered 0x101 in real cases. [Elektroda, aachi, post #17894495]
BIOS updates: follow vendor notes; some boards need intermediate steps, others allow flashing straight to latest. [Elektroda, Kolobos, post #20457226]

What does CLOCK_WATCHDOG_TIMEOUT (0x101) actually mean?

Windows did not receive an expected clock interrupt on a secondary processor. The bug check value is 0x00000101. It points to a stalled CPU core in a multiprocessor system. Clear overclocks and update BIOS before deeper debugging or dump analysis. [Bug Check 0x101 CLOCK_WATCHDOG_TIMEOUT]

Could my overclock be the cause even if it seemed stable for weeks?

Yes. A reported case tied 0x101 to an overclock via increased FSB/BCLK. Marginal OCs can pass briefly, then fail under heat or workload. Revert to stock and retest before changing other parts. [Elektroda, aachi, post #17894495]

Should I set the CPU to AUTO to test for BSOD?

Yes. Set CPU options to AUTO in UEFI and test. If BSODs stop, your overclock caused instability. [Elektroda, Pedros050, post #17894024]

Will a BIOS update help with CLOCK_WATCHDOG_TIMEOUT?

Yes. "Updating the BIOS should help." Install the vendor’s latest for your exact board revision. Follow the documented flashing method. [Elektroda, Pedros050, post #17893916]

Do I need to install every intermediate BIOS or just the latest?

Follow the manufacturer’s guidance. Some models require intermediate updates or other steps. Others allow flashing directly to the newest BIOS. [Elektroda, Kolobos, post #20457226]

How do I fix "Instant Flash: No image file detected" on ASRock P67?

Use ASRock Instant Flash correctly.

Format a USB drive as FAT32 and copy the unzipped BIOS to the root.
Confirm the file matches your exact motherboard model and revision.
Enter UEFI, choose Instant Flash, then select and flash the file.

Instant Flash shows that message when the image is missing or mismatched. [ASRock Instant Flash]

Can bad or misconfigured drivers cause CLOCK_WATCHDOG_TIMEOUT?

Yes. Misconfigured or bad drivers can trigger BSODs like CLOCK_WATCHDOG_TIMEOUT. Update chipset, storage, and GPU drivers from the vendor, then test at stock. [Elektroda, Pedros050, post #17894080]

What do 'offset' and 'fixed' Vcore modes mean on ASRock P67?

Fixed (manual) sets a constant CPU core voltage. Offset applies a positive or negative delta to the CPU’s VID so voltage still scales with power states. Use either, but test at stock first. [ASRock P67 Pro3 User Manual]

What stock speeds should I expect on an i5‑2500K after resetting to AUTO?

Expect 3.3 GHz base and up to 3.7 GHz Turbo Boost under load when stock. These are i5‑2500K’s reference speeds. [Intel Core i5‑2500K Processor — ARK]

The BSOD still appears at stock and after a BIOS update. What next?

Enable crash dumps and analyze the 0x101 bug check to guide action. Keep BIOS defaults and disable overclocks. Focus on CPU, firmware, and drivers based on the analysis. [Bug Check 0x101 CLOCK_WATCHDOG_TIMEOUT]

Is increasing FSB/BCLK a common trigger for 0x101 on Sandy Bridge?

It can be. A case in this thread linked 0x101 to raising the FSB/BCLK. Return that setting to default and retest. [Elektroda, aachi, post #17894495]

The BSOD was intermittent. How long should I test at stock?

Because the BSOD was intermittent, test at stock across normal daily sessions. Use the system as before and watch for recurrence. [Elektroda, Anonymous, post #17894031]

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